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What is the Least Common Multiple of 18128 and 18142?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 18128 and 18142 is 164439088.

LCM(18128,18142) = 164439088

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Least Common Multiple of 18128 and 18142 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18128 and 18142, than apply into the LCM equation.

GCF(18128,18142) = 2
LCM(18128,18142) = ( 18128 × 18142) / 2
LCM(18128,18142) = 328878176 / 2
LCM(18128,18142) = 164439088

Least Common Multiple (LCM) of 18128 and 18142 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18128 and 18142. First we will calculate the prime factors of 18128 and 18142.

Prime Factorization of 18128

Prime factors of 18128 are 2, 11, 103. Prime factorization of 18128 in exponential form is:

18128 = 24 × 111 × 1031

Prime Factorization of 18142

Prime factors of 18142 are 2, 47, 193. Prime factorization of 18142 in exponential form is:

18142 = 21 × 471 × 1931

Now multiplying the highest exponent prime factors to calculate the LCM of 18128 and 18142.

LCM(18128,18142) = 24 × 111 × 1031 × 471 × 1931
LCM(18128,18142) = 164439088